package com.ruoyi.common.utils;

import org.apache.commons.lang3.time.DateFormatUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.util.Calendar;
import java.util.Date;
import java.util.concurrent.TimeUnit;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {

    private static final Logger logger = LoggerFactory.getLogger("DateUtils");

    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    public static boolean isSameMonth(Date date) {
        // 获取当前日期
        Calendar currentCalendar = Calendar.getInstance();
        currentCalendar.setTime(new Date());  // 当前时间

        // 获取给定日期的年份和月份
        Calendar givenCalendar = Calendar.getInstance();
        givenCalendar.setTime(date);

        // 判断给定日期是否是当前月份
        int currentMonth = currentCalendar.get(Calendar.MONTH);
        int currentYear = currentCalendar.get(Calendar.YEAR);

        int givenMonth = givenCalendar.get(Calendar.MONTH);
        int givenYear = givenCalendar.get(Calendar.YEAR);
        // 输出结果
//        if (isSameMonth) {
//            System.out.println("给定日期是当前月份");
//        } else {
//            System.out.println("给定日期不是当前月份");
//        }
        return  (currentMonth == givenMonth && currentYear == givenYear);
    }



    public static Date getNextYear() {
        // 获取当前日期
        Calendar calendar = Calendar.getInstance();

        // 获取当前年份并加上一年
        calendar.add(Calendar.YEAR, 1);

        // 获取下一年当前时间
        return calendar.getTime();
    }
    public static Date getNextYear(int amount) {
        // 获取当前日期
        Calendar calendar = Calendar.getInstance();

        // 获取当前年份并加上一年
        calendar.add(Calendar.YEAR, amount);

        // 获取下一年当前时间
        return calendar.getTime();
    }

    public static void main(String[] args) {
        Date nextYear = getNextYear(100);
        System.out.println(nextYear);
    }

        /**
         * 获取当前日期, 默认格式为yyyy-MM-dd
         *
         * @return String
         */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date) {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }


    public static Long getNowNanosecond() {
        Instant now2 = Instant.now().plusMillis(TimeUnit.HOURS.toMillis(8));
        return Long.valueOf(String.valueOf(now2.getEpochSecond()) + now2.getNano());
    }

    //计算两个时间相差的秒数
    public static long getTime(Date startTime, Date endTime) {
        long eTime = endTime.getTime();
        long sTime = startTime.getTime();
        long diff = (eTime - sTime) / 1000;
        return diff + 1;
    }

    //计算两个时间相差的秒数
    public static long getTime(Date endTime) {
        return getTime(new Date(), endTime);
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getNowWeeHoursDate() {
        Calendar cal = Calendar.getInstance();
        cal.add(cal.DATE, 0);
        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
        return cal.getTime();
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 判断日期是否在当前日期之前
     */
    public static boolean compareToNow(Date date, Date nowDate) {
        SimpleDateFormat format = new SimpleDateFormat(YYYY_MM_DD_HH_MM_SS);
        String s1 = format.format(date);
        String s2 = format.format(nowDate);

        boolean result = false;
        try {
            result = format.parse(s1).before(format.parse(s2));
        } catch (ParseException e) {
            logger.error(e.getMessage());
        }
        return result;
    }
}
